Floor structure.



No. 811,491. PATENTED JAN. 30, 1906- J. HEATH.

FLOOR STRUCTURE.

APPLICATION FILED FEB.9, 1903.

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Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed February 9, 1903. Serial No. 142,629.

To ail whcmit may concern Be it known that I, JEAN ERATH, a subject of the German Emperor, residing at Strassburg, Germany, have invented certain new and useful Improvements in Floor Structures and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The subject of this invention is a means whereby ceilings dividing floors and walls of plaster (gypsum) or other material are suspended or firmly secured, as the case may be, through the medium of bearers or bars of special shape and of a combination of such bearers and bars, so that the ceilings or roofs dividing floors and walls so constructed shall be free from cracks, sound-deadening, and fire-resisting and at the same time possess the property of excluding dampness, heat, and cold.

Figures 1 to 6 of the drawings illustrate several'modes of construction of roofs or ceilings in accordance with this invention. Fig. 2 represents a timbered and plaster-flagged ceiling. At distances corresponding to the width of the plaster-flags hooks l) are driven longitudinally into the joists from below, and onto these hooks the holding, hearing, or bracing irons a, Fig, 1, are suspended. Between every two irons a a flag c is inserted or sus pended, two irons a being provided under each joist for the support of such flag or floorboard throughout its length. Adjacent to the first floor plate or flag as many other similar floor-plates are arranged side by side as are necessary to complete the floor or ceiling, whereupon a facing or layer of plaster d is laid over the whole surface, which may be smoothed or felted In order to permit horizontal ceilings or floors to be obtained, even where the timbering is not level, it is only necessary to bring all the hooks b driven into the joists into one plane by the aid of horizontally-stretched cords. Where the unevenness of the timbering is but slight, this may be effected simply by driving the hooks into the joists to a proportionately greater or less depth. In the case of more considerable differences of level, however, longer or shorter hooks may be used, as required.

The floor-plates have rooves provided in both their longitudinal si es for the reception of the irons a. The part or joint of the floorplates under the groove is beveled longitudinally, so that every pair of floor-plates suspended in juxtaposition meet at their beveled surfaces, care being taken to provide space for the passage of the irons a above the groove.

Fig. 3 is a ceiling suspended by means of I- irons, while in other respects it is identical with that shown in Fig. 2.

Between any two I-irons, at a distance of about sixty-five centimeters apart, iron bars approximately ten millimeters in diameter are laid on the lower flanges. Over these bars wire hooks h, such as are shown in Fig. 1, are passed, and into these the irons a are hung. The wire hook h may readily be opened out or bent apart, then passed over the bar 12, and then once more compressed to its original shape.

The same construction that Fig. 3 represents as being carried out with I-irons is shown in Fig. 4 as applied to timbers.

At a distance apart of from sixty-five to seventy centimeters at right angles to the timbering (framework of joists) iron bars or rods, such as e, ten millimeters in diameter are hung in hooks b, which are driven into the joists. The ceiling is secured to the said rods or bars a as already described with reference to Fig. 3. In this construction the floorplates run parallel to the joists. This form of ceiling is especially to be recommended where the timbering is old or where (otherwise) a lining of from fifteen to thirty centimeters or more would be required; but even in the case of new joists this construction will prove useful, its cost, however, exceeding that described with reference to Fig. 3 by about three and one-half pence per square meter.

Where concrete arches rise between the I- irons, the form of ceiling (or roofing) shown. in Fig. 5 may be employed; but inasmuch as the concrete would render the employment of straight rods, as shown in Fig. 3, diflicult the iron rod or bar is here cranked on one side, and this part may readily be driven into the concrete over the lower flange of the I-iron. The other side is inserted into a wire loop g, which is hung onto the cranked portion of the next following iron rod. In other respects the construction of the ceiling is the same as shown in Fig. 3.

Fig. 6 shows a cast ceiling in which iron rods 6 support the hooks i, which in turn support the rods m, which support the wire-netting The rods 6 here only serve for the reception of the hooks 11, together with the irons therein, so as to secure the Wooden moldframe Z in position, thus rendering merely temporary service. The moment the casting. is completed the hooks i are cut through" and the boards of the mold-frame removed. The said rods e are also taken out, With a View to their being utilized again for the same purpose.

said members and from each other, T-irons suspended from said rods, and flags supported from said T-irons.

2. A floor or ceiling comprising flanged members, cranked rods supported on the l flanges of said members and from each other, T-irons suspended from said cranked rods, and flags supported by said T-irons, all substantially as and for the purpose specified.

In Witness whereof I have hereunto set my hand in the presence of two Witnesses.

JEAN ERATH.

Witnesses:

GEORGES KRALL, GUST: v SoHWEIss. 

